3.2

M3.2 Earthquake 49 km ESE of Plush, OregonMarch 16, 2023

2023-03-16 20:33:40 UTC (2023-03-16) · approx. 12:33 PM UTC-8 local

MagnitudeM3.2(ml)
Time20:33 UTC12:33 PM UTC-8
Depth8.3 kmshallow crustal
Coordinates42.188°, -119.387°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 16, 2023 at 20:33 UTC, a magnitude 3.2 shallow crustal earthquake struck 49 km ESE of Plush, Oregon, at a depth of 8.3 km and coordinates 42.1883°, -119.3873°.

Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 858 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 93 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 42.19°, -119.39°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M3.2 earthquake near 49 km ESE of Plush, Oregon

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
3.2 ml
Depth
8.3 km
shallow crustal
Location
42.1883°N
-119.3873°E
Intensity (MMI)
3.3
light

Technical Information

Event ID
uw61902757
Event Type
earthquake
Status
✓ Reviewed
Significance
155
Stations Used
9
Azimuthal Gap
183.0°
Min Station Distance
0.382°
RMS Residual
0.20 sec
Last Updated
2024-09-03 06:05:11 UTC

Common Questions

How strong was the magnitude 3.2 earthquake near Plush, Oregon?

The magnitude 3.2 earthquake that struck 49 km ESE of Plush, Oregon on March 16, 2023 at 20:33 UTC had a depth of 8.3 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: uw61902757). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, March 16, 2023). M3.2 Earthquake 49 km ESE of Plush, OregonMarch 16, 2023. Retrieved September 3, 2024 from https://www.earthquaketracker.org/earthquakes/event/uw61902757/